bq34z950

bq34z950 www.ti.com SLUSBF0A – APRIL 2013 – REVISED MAY 2013 SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION ENABLED WITH IMPEDANCE TRACK™ WITH OPTIONAL DQ INTERFACE Check for Samples: bq34z950 FEATURES 1 2 Next Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries – Better Than 1% Error Over the Lifetime of the Battery Supports the Smart Battery Specification SBS V1.1 Optional DQ Communication Interface Flexible Configuration for 2-Series to 4-Series Li-Ion and Li-Polymer Cells Powerful 8-Bit RISC CPU with Ultralow Power Modes Full Array of Programmable Protection Features – Voltage – Current – Temperature Satisfies JEITA Guidelines Added Flexibility to Handle More Complex Charging Profiles Drives 3-, 4-, and 5-Segment LED Display for Battery-Pack Conditions Supports SHA-1 Authentication Complete Battery Protection and Gas Gauge Solution in One Package Available in a 44-Pin TSSOP (DBT) Package APPLICATIONS Notebook PCs Medical and Test Equipment Portable Instrumentation DESCRIPTION The bq34z950 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track technology, is a single IC solution designed for battery-pack or in-system installation. The bq34z950 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. The bq34z950 monitors capacity change, battery impedance...